90290120

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{9857}}^1$

素因数の和:10097

約数の個数: 32

約数和(自身を含む): 204060600

約数和(自身を除く): 113770480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 9857, 19714, 39428, 49285, 78856, 98570, 197140, 394280, 2257253, 4514506, 9029012, 11286265, 18058024, 22572530, 45145060, 90290120]

約数ペア:

[(1, 90290120), (2, 45145060), (4, 22572530), (5, 18058024), (8, 11286265), (10, 9029012), (20, 4514506), (40, 2257253), (229, 394280), (458, 197140), (916, 98570), (1145, 78856), (1832, 49285), (2290, 39428), (4580, 19714), (9160, 9857)]